package org.jeecg.modules.job.api.util;

import com.google.gson.Gson;
import com.google.gson.internal.LinkedTreeMap;
import com.google.gson.reflect.TypeToken;
import org.apache.http.HttpEntity;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class GPSUtil {
    public static double pi = 3.1415926535897932384626;
    public static double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
    public static double a = 6378245.0;
    public static double ee = 0.00669342162296594323;

    public static double transformLat(double x, double y) {
        double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y
                + 0.2 * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;
        ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;
        return ret;
    }

    public static double transformLon(double x, double y) {
        double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1
                * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
        ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0
                * pi)) * 2.0 / 3.0;
        return ret;
    }

    public static double[] transform(double lat, double lon) {
        if (outOfChina(lat, lon)) {
            return new double[]{lat, lon};
        }
        double dLat = transformLat(lon - 105.0, lat - 35.0);
        double dLon = transformLon(lon - 105.0, lat - 35.0);
        double radLat = lat / 180.0 * pi;
        double magic = Math.sin(radLat);
        magic = 1 - ee * magic * magic;
        double sqrtMagic = Math.sqrt(magic);
        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
        double mgLat = lat + dLat;
        double mgLon = lon + dLon;
        return new double[]{mgLat, mgLon};
    }

    public static boolean outOfChina(double lat, double lon) {
        if (lon < 72.004 || lon > 137.8347)
            return true;
        if (lat < 0.8293 || lat > 55.8271)
            return true;
        return false;
    }

    /**
     * 84 to 火星坐标系 (GCJ-02) World Geodetic System ==> Mars Geodetic System
     *
     * @param lat
     * @param lon
     * @return
     */
    public static double[] gps84_To_Gcj02(double lat, double lon) {
        if (outOfChina(lat, lon)) {
            return new double[]{lat, lon};
        }
        double dLat = transformLat(lon - 105.0, lat - 35.0);
        double dLon = transformLon(lon - 105.0, lat - 35.0);
        double radLat = lat / 180.0 * pi;
        double magic = Math.sin(radLat);
        magic = 1 - ee * magic * magic;
        double sqrtMagic = Math.sqrt(magic);
        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
        double mgLat = lat + dLat;
        double mgLon = lon + dLon;
        return new double[]{mgLat, mgLon};
    }

    /**
     * * 火星坐标系 (GCJ-02) to 84 * * @param lon * @param lat * @return
     */
    public static double[] gcj02_To_Gps84(double lat, double lon) {
        double[] gps = transform(lat, lon);
        double lontitude = lon * 2 - gps[1];
        double latitude = lat * 2 - gps[0];
        return new double[]{latitude, lontitude};
    }

    /**
     * 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换算法 将 GCJ-02 坐标转换成 BD-09 坐标
     *
     * @param lat
     * @param lon
     */
    public static double[] gcj02_To_Bd09(double lat, double lon) {
        double x = lon, y = lat;
        double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);
        double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);
        double tempLon = z * Math.cos(theta) + 0.0065;
        double tempLat = z * Math.sin(theta) + 0.006;
        double[] gps = {tempLat, tempLon};
        return gps;
    }


    /**
     * * 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换算法 * * 将 BD-09 坐标转换成GCJ-02 坐标 * * @param
     * bd_lat * @param bd_lon * @return
     */
    public static double[] bd09_To_Gcj02(double lat, double lon) {
        double x = lon - 0.0065, y = lat - 0.006;
        double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);
        double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
        double tempLon = z * Math.cos(theta);
        double tempLat = z * Math.sin(theta);
        double[] gps = {tempLat, tempLon};
        return gps;
    }

    /**
     * 将gps84转为bd09
     *
     * @param lat
     * @param lon
     * @return
     */
    public static double[] gps84_To_bd09(double lat, double lon) {
        double[] gcj02 = gps84_To_Gcj02(lat, lon);
        double[] bd09 = gcj02_To_Bd09(gcj02[0], gcj02[1]);
        return bd09;
    }

    public static double[] bd09_To_gps84(double lat, double lon) {
        double[] gcj02 = bd09_To_Gcj02(lat, lon);
        double[] gps84 = gcj02_To_Gps84(gcj02[0], gcj02[1]);
        //保留小数点后六位
        gps84[0] = retain6(gps84[0]);
        gps84[1] = retain6(gps84[1]);
        return gps84;
    }

    /**
     * 保留小数点后六位
     *
     * @param num
     * @return
     */
    private static double retain6(double num) {
        String result = String.format("%.6f", num);
        return Double.valueOf(result);
    }


    /**
     * 计算距离百度等
     * */
    public static double  Rad(double d) {
        return d * Math.PI / 180.0; //经纬度转换成三角函数中度分表形式。
    }
    /**
     * 计算距离百度等
     * */
    public static double  GetDistance(double lat1,double lng1,double lat2,double lng2) {
        double radLat1 = Rad(lat1);
        double radLat2 = Rad(lat2);
        double a = radLat1 - radLat2;
        double b = Rad(lng1) - Rad(lng2);
        double s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2)));
        s = s * 6378.137; // 地球半径，千米;
//        s = Math.round(s * 10000) / 10000;
        s = Math.round(s * 1000) / 1; //单位修改为米,取整
//        s=s/1000;//输出为公里
//      s=s.toFixed(4);
        return s;
    }

    /**
     * 计算距离百度等
     * */
    public static double  GetDistance(String lat1,String lng1,String lat2,String lng2) {
        return GetDistance(Double.parseDouble(lat1),Double.parseDouble(lng1),Double.parseDouble(lat2),Double.parseDouble(lng2));
    }


    /**
     * 高德转百度api
     * */
    public static double[] gaoDeToBaidu(double lng,double lat) {
        double[] lnglat = new double[2];
        CloseableHttpClient httpClient = HttpClients.createDefault();
        String coords = lng + "," + lat;
        System.out.println("innit=="+coords);
        String url = "http://api.map.baidu.com/geoconv/v1/?coords=" + coords + "&from=3&to=5&sn=5&output=json&ak=voyLgoXykUd2CaG5Zd9GHfahnThlBFF5";
        HttpGet post = new HttpGet(url);
        RequestConfig requestConfig = RequestConfig.custom()
                .setConnectTimeout(60000).setConnectionRequestTimeout(60000)
                .setSocketTimeout(60000).build();
        post.setConfig(requestConfig);
        try {
            //指定报文头【Content-type】、【User-Agent】
            post.setHeader("Content-type", "application/json");
            post.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
            CloseableHttpResponse response = httpClient.execute(post);
            //获取结果实体
            HttpEntity entity = response.getEntity();
            String body;
            if (entity != null) {
                //按指定编码转换结果实体为String类型
                body = EntityUtils.toString(entity, "utf-8");
                Gson gson = new Gson();
                Map bodyJson = gson.fromJson(body, new TypeToken<Map>() {
                }.getType());
                List<Double> list = new ArrayList<Double>();

                list = (List<Double>) bodyJson.get("result");
                Object[] arr = list.toArray();
                LinkedTreeMap<String, Object> map = (LinkedTreeMap) arr[0];
                lnglat[0] = (Double) map.get("x");
                lnglat[1] = (Double) map.get("y");
                System.out.println("百度api");
                System.out.println( lnglat[0]+","+ lnglat[1]);
            }
            EntityUtils.consume(entity);
            //释放链接
            response.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return lnglat;
    }

    public static void main(String[] args) {
//        double[] ss = GPSUtil.gcj02_To_Bd09(25.828467,  114.93358);
//        double[] ss = GPSUtil.gaoDeToBaidu(114.922994,25.853137);
//        System.out.println(ss[1] + "," + ss[0]);
        Double  dd=GetDistance("37.172995","117.824955","37.170809","117.82981");
        System.err.println(dd);
    }
}